一、摘要

SIXTY 沒有帳號、不用登入，我們也沒有任何伺服器保管你的資料。你輸入的內容留在裝置上、本 App 自己的儲存空間裡。

有三件事會離開你的裝置。

1. 查詢你的訂閱狀態。SIXTY 開啟時會向 RevenueCat 詢問這台裝置有沒有有效的訂閱，以及方案的價格。這件事在開啟時就會發生，不是只有你購買時才發生。它不會帶上出生資料、姓名，或任何我們自己造的識別碼 —— RevenueCat 會自己給這台裝置一個匿名 ID。連不上網路時 App 照樣能用，除了付費功能以外都離線。
2. 購買訂閱。付款由 Apple 或 Google 處理，購買憑證由 RevenueCat 驗證。
3. 你自己分享檔案。你按下分享時，音檔、MIDI 或圖片會交給裝置的系統分享單，再交給你選的那個 App。

第 2、3 項只有你自己做才會發生；第 1 項會自己發生。

其餘的一切 —— 音樂、顏色、你的日子 —— 都在你的裝置上生成、也留在你的裝置上。

二、本 App 存在你裝置上的資料

存在本 App 自己的偏好儲存空間：

• 你的出生日期，以純日曆日期的形式儲存
• 你的出生時間（時與分），以及你有沒有填過時間
• 你的暱稱（如果你有取）
• 你收下了哪些日子、每一天選了什麼感受
• 你收藏的「特別的日子」，以及你替它們取的名字
• 介面語言、深淺色、演奏版本偏好
• 一組由出生日期與時辰推導出來的識別碼。它在你的裝置上算出來，只用來讓你的音樂在不同次開啟之間維持一致，不會被傳到任何地方

存在裝置的暫存資料夾：

• 為了播放而算好的音檔，讓重播是即時的
• 你使用分享或下載時，另外準備的音檔、MIDI 或分享卡圖片副本

這些暫存檔與上面那些資料具有同樣的個人意義，因為它們編碼的正是你的音樂。你的作業系統隨時可以清掉它們，本 App 也會在下次啟動時掃掉上一輪留下的副本，而「重新開始」會刪除它們（見第七節）。

三、這些資料怎麼被使用

第二節列出的一切，都在你的裝置上被用來讓這個 App 運作：

• 出生日期與出生的時辰決定你聽到的旋律與看到的顏色。所有人用的是同一台鋼琴 —— 出生資料決定的是音樂，不是樂器。時間不填就當中午十二點。你填的分鐘會被存下來、也會顯示回來給你看，但它不會改變音樂。
• 你收下的日子與那天選的感受，是一週或一個月的曲子組起來的材料。
• 你收藏的「特別的日子」與它們的名字，是給你自己辨認用的標籤。
• 語言、深淺色與演奏版本的選擇，決定這個 App 看起來與聽起來的樣子。

我們沒有伺服器，也不會收到你的出生資料、暱稱、收下的日子、收藏的日子或你的音樂。本 App 裡沒有任何機制會把它們送出去。我們也不會拿這些資料做剖析、廣告，或任何超出「產生你看到與聽到的東西」的用途。

由我們造成、會抵達第三方而且與你有關的個人資料，只有你的購買，以及開啟 App 時對 RevenueCat 的訂閱狀態查詢。那次查詢不含出生資料、姓名或任何我們造的識別碼。

四、購買與第三方服務

當你購買訂閱時：

• Apple 或 Google 依它們自己的條款處理付款。我們看不到你的卡號、姓名或帳單地址。
• RevenueCat 收到購買憑證，用來驗證訂閱是否有效並解鎖付費功能。RevenueCat 用它自己產生的匿名識別碼來辨識你的訂閱。我們不會把出生資料、姓名，或任何我們自己造的識別碼傳給它。RevenueCat 的隱私清單載明：它只蒐集購買紀錄、不與你的身分連結、不用於追蹤。

這是本 App 自己會傳送資料的唯一第三方。你自己選擇分享出去的檔案會去到別的地方，見第五節。它們的政策：

• RevenueCat：https://www.revenuecat.com/privacy
• Apple：https://www.apple.com/legal/privacy/
• Google：https://policies.google.com/privacy

五、你自己分享出去的檔案

當你使用分享或下載時，SIXTY 會把檔案寫進暫存資料夾，再交給裝置的系統分享單。要傳去哪裡由你決定。 檔案一旦進入你選的那個 App —— 通訊軟體、雲端硬碟、影片剪輯軟體 —— 就依那個 App 的條款與隱私政策處理，不再依本政策。我們看不到它，也沒有辦法把它收回來。

分享出去的檔案裡是你分享的那一天或那一段期間的音訊、MIDI 或圖像，不包含你的出生日期、暱稱，或其他收下的日子。

六、我們不做的事

• 不做分析。我們不量測你怎麼使用本 App。
• 不放廣告。沒有廣告 SDK，也沒有廣告識別碼。
• 不做追蹤。不會把任何東西與其他 App 或網站的資料合併。
• 不蒐集我們自己的當機或診斷回報。
• 沒有帳號，我們也沒有任何保管你資料的伺服器。
• 不接任何 AI 服務。音樂是在你的裝置上由演算法產生的，不會送到任何模型 —— 我們的或別人的都一樣。
• 絕不販售或出租個人資料。

七、資料保存與刪除

第二節列出的所有資料都留在你的裝置上，直到你把它們刪掉為止。

「我」→「重新開始」 會刪除你的出生日期與時間、暱稱、你收下的每一天與那天的感受、你收藏的特別的日子，以及 SIXTY 寫進暫存資料夾的音檔、MIDI 與分享卡圖片。立即生效，無法復原。

「重新開始」刻意保留介面語言、深淺色與演奏版本偏好。那些是設定、不是個人資料，清掉只會讓你在重設之後更難閱讀畫面。

移除本 App 會一併移除它存在那台裝置上的資料。

你的訂閱紀錄由 Apple 或 Google 以及 RevenueCat 保管，不在我們這裡。要取消請用裝置的訂閱設定。要請 RevenueCat 刪除它的紀錄，請寫信到第十三節的信箱，我們會代為轉達。

八、裝置備份

• Android：SIXTY 已關閉裝置備份，資料不會被複製到 Google Drive。
• iOS：本 App 的偏好儲存空間可能被納入你的裝置所做的 iCloud 備份或加密的本機備份。那份副本屬於你、留在你的 Apple 帳號裡，可以在 iOS 設定裡刪除。我們讀不到它。

九、你的權利

因為沒有帳號、我們也沒有伺服器，我們手上沒有任何一份你的資料可以代你查閱、更正、匯出或刪除。它們全部在你手上：在 App 裡看與改，用「重新開始」或移除 App 來清除。

至於第四節說的購買紀錄，來信告訴我們，我們會把你的請求轉給 RevenueCat。與付款資料有關的請求，Apple 與 Google 依它們自己的政策直接處理。

十、兒童

SIXTY 不以未滿 13 歲的兒童為對象，我們也不會在知情的情況下蒐集他們的個人資料。若你認為有兒童透過本 App 提供了資料給我們，請與我們聯絡 —— 不過實際上本 App 沒有帳號、不上傳資料，我們這邊沒有東西可以移除。

十一、國際傳輸

我們沒有伺服器，也不會把你的資料跨境傳輸。Apple、Google 與 RevenueCat 可能在你所在地以外的國家（包括美國）處理購買資料，依它們自己的政策與保護措施進行。

十二、安全

SIXTY 存的資料位於本 App 的私有儲存空間，由你的作業系統與螢幕鎖保護。因為出生資料不會離開你的手機，也就沒有傳輸過程可以被攔截。

請注意 SIXTY 本身沒有另外的密碼鎖：任何能解鎖你裝置的人都可以打開它、看到你存下來的東西。沒有任何儲存方式是絕對安全的，我們無法保證百分之百的安全。

十三、供應範圍

SIXTY 目前不在歐盟與英國提供。

十四、本政策的變更

如果本 App 的資料流有變 —— 新增服務、新增備份功能，或任何會把資料送出裝置的東西 —— 這份政策會在同一次改版一起更新，最上面的日期也會跟著改。重大變更也會寫在版本更新說明裡。更新後繼續使用 SIXTY，即表示你接受修訂後的政策。

十五、聯絡方式

[email protected]

1. Summary

SIXTY has no account, no sign-in, and no server of ours holding your data. What you type stays in the app's own storage on your device.

Three things leave your device.

1. Checking your subscription. When SIXTY opens, it asks RevenueCat whether this device has an active subscription, and what the plans cost. This happens on launch, not only when you buy. It carries no birth data, no name, and no identifier we created — RevenueCat assigns this device an anonymous ID of its own. If it cannot reach the network, the app still works; everything except the paid features is offline.
2. Buying a subscription. The purchase is processed by Apple or Google, and the receipt is validated by RevenueCat.
3. Sharing a file yourself. When you tap share, the audio, MIDI, or image is handed to your device's share sheet and then to the app you pick.

Only you can make (2) and (3) happen. (1) happens on its own.

Everything else — the music, the colours, your dates — is produced and kept on your device.

2. What SIXTY stores on your device

Stored in the app's own preference storage:

• Your birth date, stored as a plain calendar date
• Your time of birth (hour and minute), and whether you have entered one
• Your nickname, if you gave one
• Which days you have kept, and the feeling you chose for each
• The dates you have saved as Life Dates, and the names you gave them
• Your interface language, light/dark choice, and arrangement preference
• An identifier derived from your birth date and hour. It is calculated on your device and used only to keep your music consistent between sessions. It is never sent anywhere.

Stored in your device's temporary folder:

• Audio rendered for playback, so replays are instant
• Copies of audio, MIDI, or share-card images prepared when you use share or download

These temporary files carry the same personal meaning as the data above, because they encode your music. Your operating system may delete them at any time, the app sweeps leftovers from previous sessions at launch, and Start over removes them (see section 7).

3. How the data is used

Everything in section 2 is used on your device, to run the app:

• Your birth date and the hour you were born shape the melody and the colour you hear and see. Everyone plays the same piano — what your birth data decides is the music, not the instrument. Leave the time blank and the app treats it as noon. The minute you enter is stored and shown back to you, but it does not change the music.
• The days you have kept and the feeling you chose for each are what a week or a month is assembled from.
• Your Life Dates and their names are labels for you to recognise them by.
• Your language, light/dark, and arrangement choices set how the app looks and sounds.

We do not operate a server and we do not receive your birth data, your nickname, your kept days, your Life Dates, or your music. There is no mechanism in the app that sends them anywhere. We do not use any of it for profiling, advertising, or any purpose beyond producing what you see and hear.

The only personal data associated with you that we cause to reach a third party is your purchase, plus the subscription check RevenueCat receives when the app opens. That check carries no birth data, no name, and no identifier we created.

4. Purchases and third-party services

When you buy a subscription:

• Apple or Google processes the payment under its own terms. We never see your card details, your name, or your billing address.
• RevenueCat receives the purchase receipt so it can validate your subscription and unlock the paid features. RevenueCat identifies your subscription with an anonymous identifier it generates. We do not pass it your birth data, your name, or any identifier we created. RevenueCat's own privacy manifest declares that it collects purchase history only, that it is not linked to your identity, and that it is not used for tracking.

These are the only third parties the app itself sends anything to. Files you choose to share go elsewhere, and that is covered in section 5. Their policies:

• RevenueCat: https://www.revenuecat.com/privacy
• Apple: https://www.apple.com/legal/privacy/
• Google: https://policies.google.com/privacy

5. Files you share yourself

When you use share or download, SIXTY writes a file to a temporary folder and passes it to your device's system share sheet. You choose where it goes. Once the file reaches the app you picked — a messaging app, a cloud drive, a video editor — it is handled under that app's terms and privacy policy, not ours. We have no visibility into it and no way to recall it.

A shared file contains the audio, MIDI, or artwork for the day or period you shared. It does not contain your birth date, your nickname, or your other saved days.

6. What SIXTY does not do

• No analytics. We do not measure how you use the app.
• No advertising. No ad SDKs and no advertising identifier.
• No tracking. Nothing is combined with data from other apps or websites.
• No crash or diagnostic reporting of our own.
• No accounts and no server of ours that holds your data.
• No AI services. The music is produced by an algorithm running on your device. Nothing is sent to any model, ours or anyone else's.
• No selling or renting of personal data, ever.

7. Retention and deletion

Everything in section 2 stays on your device until you remove it.

Me → Start over deletes your birth date and time, your nickname, every day you have kept and its feeling, your Life Dates, and the audio, MIDI, and share-card images SIXTY has written to the temporary folder. It is immediate and cannot be undone.

Start over deliberately keeps your interface language, light/dark choice, and arrangement preference. Those are settings, not personal data, and losing them would only make the app harder to read after a reset.

Deleting the app removes the app's stored data from that device.

Your subscription record is held by Apple or Google and by RevenueCat, not by us. To cancel, use your device's subscription settings. To ask RevenueCat to delete its record, write to us at the address in section 13 and we will pass the request on.

8. Device backups

• Android: SIXTY has device backup turned off, so its data is not copied to Google Drive.
• iOS: the app's preference storage can be included in an iCloud or encrypted local backup made by your device. That copy belongs to you, stays inside your Apple account, and can be deleted in iOS Settings. We cannot read it.

9. Your rights

Because there is no account and no server of ours, we hold no copy of your data to access, correct, export, or delete on your behalf. All of it is in your hands: view and edit it in the app, and erase it with Start over or by deleting the app.

For the purchase records described in section 4, contact us and we will pass your request to RevenueCat. Apple and Google handle requests about payment data directly under their own policies.

10. Children

SIXTY is not directed at children under 13, and we do not knowingly collect personal data from them. If you believe a child has provided data to us through the app, contact us — although in practice the app has no account and no upload, so there is nothing on our side to remove.

11. International transfers

We do not operate servers and we do not transfer your data across borders. Apple, Google, and RevenueCat may process purchase data in countries other than yours, including the United States, under their own policies and safeguards.

12. Security

Data stored by SIXTY lives in the app's private storage, protected by your device's operating system and screen lock. Because it never travels, there is no transmission of it to intercept.

Note that SIXTY has no separate passcode of its own: anyone who can unlock your device can open the app and see what you have saved. No method of storage is completely secure, and we cannot guarantee absolute security.

13. Where SIXTY is available

SIXTY is currently not offered in the European Union or the United Kingdom.

14. Changes to this policy

If the app's data flow changes — a new service, a backup feature, anything that sends data off your device — this policy is updated in the same release, and the date at the top changes with it. Material changes will also be noted in the app's release notes. Continuing to use SIXTY after an update means you accept the revised policy.

15. Contact

[email protected]